Hey there!
I've got a '92 Crown Vic with the 4.6 and I want some nice growl out of 'er without going overboard.
What I've been told is that the best, purest, rawest (and cheapest) thing to do is to just have straight pipes from the catalytics back. What I've got now is how it came: 4 cats on 2 pipes, Y-pipe, then a muffler and tailpipe. It won't cost much to get rid of that Y and muffler and just go straight back from both sets of cats with an H-pipe up front.
My one buddy has a '91 5.0 Mustang with true duals, and it sounds great. Another buddy has a '96 Cougar that wasn't set up for true duals - he's got a Y-pipe, then one pipe to the back, followed by another Y to give him duals at the back, but it's not duals all the way the Mustang is from front to back. The Coug sounds ok, but nowhere near what that Mustang sounds like.
I want to know how much of that has to do with the engine and how much has to do with the exhaust setup because I've got the 4.6 like the Coug, but I'll have true duals like the 'Stang. Is it reasonable to assume my 'Vic will sound somewhere between the Coug and the Stang? I know I'll never sound as awesome as that Stang, but I wanna sound closer to it than the Couger.
Thanks guys
Greg